JP3043887B2 - 複数のカバレージエリアをカバーするのに適した衛星通信装置 - Google Patents
複数のカバレージエリアをカバーするのに適した衛星通信装置Info
- Publication number
- JP3043887B2 JP3043887B2 JP4064078A JP6407892A JP3043887B2 JP 3043887 B2 JP3043887 B2 JP 3043887B2 JP 4064078 A JP4064078 A JP 4064078A JP 6407892 A JP6407892 A JP 6407892A JP 3043887 B2 JP3043887 B2 JP 3043887B2
- Authority
- JP
- Japan
- Prior art keywords
- satellite
- channel
- amplifiers
- type
- covering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/2041—Spot beam multiple access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aviation & Aerospace Engineering (AREA)
- Multimedia (AREA)
- Radio Relay Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Details Of Television Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9103509A FR2674401B1 (fr) | 1991-03-22 | 1991-03-22 | Installation de telecommunication par satellites apte a interesser plusieurs zones de couverture. |
FR9103509 | 1991-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0591005A JPH0591005A (ja) | 1993-04-09 |
JP3043887B2 true JP3043887B2 (ja) | 2000-05-22 |
Family
ID=9411030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4064078A Expired - Lifetime JP3043887B2 (ja) | 1991-03-22 | 1992-03-19 | 複数のカバレージエリアをカバーするのに適した衛星通信装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5410731A (fr) |
EP (1) | EP0505284B1 (fr) |
JP (1) | JP3043887B2 (fr) |
CA (1) | CA2063640C (fr) |
DE (1) | DE69210453T2 (fr) |
FR (1) | FR2674401B1 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2706102B1 (fr) * | 1993-06-02 | 1995-07-07 | Alcatel Espace | Système de relais mémoire pour satellites d'observation. |
JPH0884100A (ja) * | 1994-09-13 | 1996-03-26 | Nippon Denki Musen Denshi Kk | 衛星通信システム |
FR2737627B1 (fr) * | 1995-08-02 | 1997-10-03 | Europ Agence Spatiale | Systeme de transmission de signaux radioelectriques via un satellite de communication geostationnaire, notamment pour des communications avec des terminaux mobiles portables |
US5612701A (en) * | 1995-09-18 | 1997-03-18 | Motorola, Inc. | Adaptive beam pointing method and apparatus for a communication system |
US6708029B2 (en) | 1997-06-02 | 2004-03-16 | Hughes Electronics Corporation | Broadband communication system for mobile users in a satellite-based network |
US6032041A (en) * | 1997-06-02 | 2000-02-29 | Hughes Electronics Corporation | Method and system for providing wideband communications to mobile users in a satellite-based network |
US6272679B1 (en) * | 1997-10-17 | 2001-08-07 | Hughes Electronics Corporation | Dynamic interference optimization method for satellites transmitting multiple beams with common frequencies |
US6007027A (en) * | 1997-11-14 | 1999-12-28 | Motorola, Inc. | Method and apparatus for early service using phased satellite depolyment |
WO1999040693A1 (fr) | 1998-02-04 | 1999-08-12 | Friedman, Robert, F. | Procede et appareil de combinaison de repeteurs sur plusieurs satellites dans des canaux virtuels |
FI107365B (fi) | 1998-04-27 | 2001-07-13 | Nokia Mobile Phones Ltd | Menetelmä ja järjestelmä muuttuvan datankäsittelyn ilmaisemiseksi tiedonsiirtoyhteydessä |
FR2783377A1 (fr) * | 1998-09-14 | 2000-03-17 | Loral Space Systems Inc | Systeme de communications par satellite ameliore utilisant des multiplexeurs d'entree hf depuis une pluralite de faisceaux ponctuels vers un recepteur |
US6349214B1 (en) | 1999-05-21 | 2002-02-19 | Warren L. Braun | Synchronization of broadcast facilities via satellite |
US6192217B1 (en) | 1999-07-01 | 2001-02-20 | Assuresat, Inc. | Universal replacement communications satellite |
US7720472B1 (en) * | 2000-09-14 | 2010-05-18 | The Directv Group, Inc. | Stratospheric-based communication system having interference cancellation |
US7809403B2 (en) | 2001-01-19 | 2010-10-05 | The Directv Group, Inc. | Stratospheric platforms communication system using adaptive antennas |
US8396513B2 (en) * | 2001-01-19 | 2013-03-12 | The Directv Group, Inc. | Communication system for mobile users using adaptive antenna |
US7187949B2 (en) * | 2001-01-19 | 2007-03-06 | The Directv Group, Inc. | Multiple basestation communication system having adaptive antennas |
US20040192376A1 (en) * | 2002-03-11 | 2004-09-30 | Grybos David P. | Multi-beam satellite collocation and channel power allocation |
US7379758B2 (en) * | 2002-07-23 | 2008-05-27 | Qualcomm Incorporated | Satellite communication system constituted with primary and back-up multi-beam satellites |
US8358971B2 (en) | 2002-07-23 | 2013-01-22 | Qualcomm Incorporated | Satellite-based programmable allocation of bandwidth for forward and return links |
KR100994664B1 (ko) | 2002-07-23 | 2010-11-16 | 퀄컴 인코포레이티드 | 프라이머리 다중 빔 위성 및 백업 다중 빔 위성을 가지는위성통신 시스템 |
DE10259638B4 (de) * | 2002-12-18 | 2004-12-09 | Intersecure Logic Limited | Servicefahrzeug zur Ausführung von Handlungen an einem Ziel-Raumfahrzeug, Wartungssystem und Verfahren zur Nutzung eines Servicefahrzeugs |
US7639646B2 (en) * | 2004-03-17 | 2009-12-29 | Qualcomm Incorporated | Satellite diversity system, apparatus and method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4070637A (en) * | 1976-03-25 | 1978-01-24 | Communications Satellite Corporation | Redundant microwave configuration |
US4744083A (en) * | 1984-09-14 | 1988-05-10 | Geostar Corporation | Satellite-based position determining and message transfer system with monitoring of link quality |
US4831619A (en) * | 1986-08-14 | 1989-05-16 | Hughes Aircraft Company | Satellite communications system having multiple downlink beams powered by pooled transmitters |
US4755769A (en) * | 1987-05-20 | 1988-07-05 | General Electric Company | Composite amplifier with efficient power reduction |
US4855619A (en) * | 1987-11-17 | 1989-08-08 | Xilinx, Inc. | Buffered routing element for a user programmable logic device |
US5083094A (en) * | 1990-09-28 | 1992-01-21 | Space Systems/Loral, Inc. | Selective power combiner using phase shifters |
-
1991
- 1991-03-22 FR FR9103509A patent/FR2674401B1/fr not_active Expired - Fee Related
-
1992
- 1992-03-19 JP JP4064078A patent/JP3043887B2/ja not_active Expired - Lifetime
- 1992-03-20 CA CA002063640A patent/CA2063640C/fr not_active Expired - Fee Related
- 1992-03-20 EP EP92400759A patent/EP0505284B1/fr not_active Expired - Lifetime
- 1992-03-20 DE DE69210453T patent/DE69210453T2/de not_active Expired - Fee Related
-
1994
- 1994-02-28 US US08/203,609 patent/US5410731A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0505284B1 (fr) | 1996-05-08 |
DE69210453T2 (de) | 1996-09-05 |
DE69210453D1 (de) | 1996-06-13 |
FR2674401B1 (fr) | 1993-12-17 |
CA2063640A1 (fr) | 1992-09-23 |
FR2674401A1 (fr) | 1992-09-25 |
US5410731A (en) | 1995-04-25 |
CA2063640C (fr) | 1995-11-28 |
JPH0591005A (ja) | 1993-04-09 |
EP0505284A1 (fr) | 1992-09-23 |
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